ask out

I don't ask out of curiosity; this is something that concerns me nearly as much as it does you yourself.

She spoke to him with her brows, afraid to ask out loud why he had done this, though there could be only one reason.

I ask out of politeness, dear; I don't really care in the least how your ankle is!

Do you ask out of courteous curiosity, as meeting travelers may do, or for some other reason?

I don't ask out of any impertinent curiosity, but that I hate being foiled in a thing of this kind.